Oil-cup



J. H. PORTER n P. MILLER.

(No Model.)

OIL CUP.

Patented Oct. l1, 1887.

W 'ZHESSEE.

UNITED 4STATES PATENT OFFICE.

JOHN HARSON PORTER, OF J AOKSON, AND PETER MILLER, OF YPSILANTI,

Y MICHIGAN., A

SPECIF?CATIONv forming part of Letters Patent No. 371,216, dated Octoberl1, 1887.

Application filed June 1 8, 1886. Serial No. 205,552. (No model.)

To @ZZ whom it may concern:

Beit known that we, JOHN HARsoN PORTER and PETERy MILLER, citizens ofthe United States, residing, respectively, at J aekson and Ypsilanti, inthe counties of Jackson and Washtenaw and State Michigan, have inventedcertain new and useful Improvements in OilOups; and we Vdo declare thefollowing to bea full, clear, and exact description of the Io invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the letters and iigures of reference marked thereon, which formapart I5 of this specification. l

This invention relates to an improved lubricator; and it consists in thenovel features more particularly hereinafter set forth and claimed, andshown in the annexed drawings,

zo in which Figure l is a side view. Fig. 2 is a front view. Fig. 3 is asection on the line X X of Fig. l, and Fig. 4 isadetal view of theplunger detached.

The lubricator comprises the case A, cover B, plunger C, operating-rodD,'and arm-connection E. The bottom of the case is centrally providedwith a depending` threaded shank, c, and an internal tubular extension,

3o a. A glass cup or vessel, F, snugly fitted within the case receivesand holds the lubricant. Apertures formed through the case permit theobservance of the lubricant. The tubular extension a projects throughthe bottom of the glass vessel andis ground to lit the. sides close. Theplunger G works through the cover B and tubular extension a', and issurrounded by a coil-spring, Gr, located between the cover and a pin orstop, c. The lower end is cut 40 away on one side part way only, forminga rc'- cess, c. The upper endis threaded and, projecting beyond thecover, is provided with nuts c2, between which one end of the arm E isclamped. The outer end of the arm is held 5,5 on the operating-rod D,between nuts d on its upper threaded end. The operating-rod is held inlugs A,projecting from the side of the case in such manner that it mayhave a vertical movement. The lower end is provided with a shoe, D',convcxed on its under side to track upon the cross-head or boss onshafting.

The cover is provided with the usual screwg cap, H, for closing theopening through which the lubricant is supplied to the vessel.

Packing interposed between the bottom of the vessel and the case andbetween the cover and top of the vessel cushions the latter and preventsfracture when screwing homethe cap, besides forming air-tight joints.

The recess c in the lower end of theplunger 6o is of such lengthrelative to the length of the bore a? 0I" the extensions a a that at nostage or position of the plunger will a communication be establishedbetween the vessel and the exterior or mouth of the extension a. Thebore a2 is expanded near the lower end to permit the lubricant deliveredinto the recess discharging onto the parts to be lubricated.

The position of the plunger may be regulated to bring the recess cinproper adjustment 7o relative to the bore or opening a'l in the bottomof the vessel by adjusting the nuts c?. To regulate the amount of feedof lubricant, the position of the operating-rod D may likewise be variedby adjusting the nuts d.

In practice the lubricator is secured to the moving part to belubricated, and a projection is located in the path of travel of thelower end of the rod D or shoe in such manner that it will lift the rodand plunger, bring- 8c ing the recess in the lower end of the plunger incommunication with the interior of the vessel from which the lubricantis deposited into the recess. The part continuing its movements, thelower end of the rod is disengaged from the projection, when by thereaction of the spring G the plunger is lowered, cutting offcommunication between the interior of the vessel and establishing com munication between the recess and the mouth of the shank a, from 9o whichthe lubricant escapes onto the parts to be lubricated.

The device is entirely automatic in its operation, and requires noattention after being lled with a lubricant which is fed only when themachine or the part to which it is attached is in motion, and when themachine stops the feed of lubricant ceases. The lubricant is fed only ateach dow ustroke of the plunger. .The upstrokc permits the recess c toreceive its roo supply, and the downstroke permits it to discharge thesupply received. The recess being shorter than the bore or opening cttheflow of the lubricant is shut oii at each up-and-d own stroke of theplunger and at a point neither up nor down. By this construction it isimmaterial at what point the machine may stop the owof oil will be cutoff, and the moment the machine starts the oil will again feed.

We are aware that an operating rod and spring is not broadly new, hencedo not claim such as our invention.

We are also aware that it is old to construct an oiler with a perforatedneck extending from its bottom having a plunger or stem working throughthe perforation in the neck and provided with a valve located above andbelow the neck for alternately closing the upper and lower endsofapassage-way or groove cut in the side of the stem,' and which extendsfrom one valve to the other. Ve lay no claim to such construction asforming a part of our invention. By our construction it is impossible tohave a continuous feed, and if the machine should stop in such positionthat the plunger would be midway of its stroke, neither up nor down, thesupply of oil would be -ef'ectually cut off at each end of the tubularextension. This feature is peculiar to and is the soul of ourinventionfand in this respect is materially different from any deviceheretofore constructed for a like purpose.

Having thus described our invention, what we claim,and desire to secureby Letters Pat'- ent, is-

l. The combination of the lubricant -receptacle havingoppositely-disposed openings or bearings in its top and bottom,with aplunger or rod mounted in said bearings and pro vided with alongitudinally-disposed oil-receiving chamber of less length than thebottom bearing, whereby the iiow of oil may be cut off irrespective ofthe point at which said plunger may cease its movement, as and for thepurpose set forth.

2. The lubricantreceptacle having coincident openings or bearings in itstop and bottom and lateral lugs'` an automatic plunger or rod mounted insaid bearings, and provided with a longitudinal oil-chamber of lesslength than the bottom bearing, in cmbination with an operating-rodmounted in said lugs, and an adjustable arm connecting the plunger withthe operating-rod, as and for the purpose set forth.

In testimony whereof We affix our signatures in presence of twowitnesses.

JOHN HARSON PORTER. PETER MILLER.

Vitnesses:

J. H. STROLEY, DANIEL A. FERGUSON.

